Depending on age, whether or not she drives herself, and number of children, it could be from $5-10/hr. I have heard from a mom who has girls who are babysitting that those who are old enough to be earning minimum wage already should get that (which is in the $7 range, I think? I've been out of the workforce a long time!). We generally end up rounding up especially since we have 3 boys, though an extra $1/hr over 1-2 kids should be sufficient.